package demo4;

/**
 *  实现类  声卡
 */
public class SoundCard implements PCI{
    @Override
    public void start() {
        System.out.println("声卡发出声音");
    }

    @Override
    public void stop() {
        System.out.println("声卡停止声音");
    }

    @Override
    public void print() {
        System.out.println("装配成功");
    }
}
